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(NoModeL) W. J.-DREW. Carpet Sweeper.

Patented Se t. 28,1880.

UNITED STATES PATENT OFFICE.

WALTER J. DREW, OF GRAND RAPIDS, MICHIGAN, ASSIGNOR TO MICHIGAN CARPET SWEEPER COMPANY, OF SAME PLACE.

CARPET-SWEEPER.

SPECIFICATION forming part of Letters Patent No. 232,698, dated September 28, 1880.

Application filed July 7, 1880. (No model.)

To all whom it may concern:

Be it known that I, WALTER J. DREW, of Grand-Rapids, in thecounty of Kent and State of Michigan, have invented certain new and useful Improvements in Carpet-Sweepers; and Ido hereby declare that the following is afull, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon,

I which form part of this specification, in which- Figure 1 is a bottom view, partly in section; Fig. 2, a central longitudinal section, and Fig. 3 a cross'scction.

The nature of my invention consists in the employment, in a carpet-sweeper, of a torsion spring, upon the ends of .which the friction driving-wheels are journaled, and also in certain minor details, morefully described hereinafter, and specifically pointed out in the claims.

In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation.

Arepresents the box or case of the sweeper, 2 5 which is made in the ordinary form, and its ends B are provided with vertical slots 1), as seen in Fig. 2.

a co are metal plates placed over the slots 1),

and provided in the center with an opening for 0 the reception of the end of the operating-bail C. The plates to are at each end provided with a vertical slot, 0, through which a screw is passed into the ends of the case, and the plates may be thereby adjusted up and down for the purpose 5 of raising or lowering the brush, as will be seen by reference to the'drawings.

C is the operating-bail, whose ends are bent toward each other and pass through the plates at a and slots 1) 1) into the brush-roller D, form- 0 ing journals upon which the brush revolves, and may be sprung out at any time to release and remove the brush. The brush-roller D is at one end provided with the usual frictionpulleyd to engage with the friction-wheels E E.

5 A The wheels E E are journaled upon the ends of a spring, G, which, as seen in Fig. 1, is in U form, and may extend straight across the box or case, or it may be bent upward and lie along the top of the case, as shown in the drawings,

and it is prevented from slipping backward, when in use, by the strap or staple o, as shown.

The ends of the spring upon which the wheels revolve abut against the end of the box or casing, and the wheels, being confined between the end of the box and the dust-partition H, cannot slip oft the ends of the spring or get out of their position with reference to the brush-roller.

The wheels E are separated from the dust-' chamber, as usual, by a partition, H, and this partition is provided with horizontal slots h h, i through which the spring Gr ispassed, and al lows afree movement to the'ends ot' the same, which have a tendency to spring together and keep the Wheels E pressed tightly against the friction-pulley (2, allowing for any inequalities. in the wheels or pulley and insuring the operation of the brush when the machine is in use.

The box is provided with stationary dustboards I l and dustreceptacle having sliding 7o bottoms JJ. These bottoms are connected by wires or bars 73 i, and slide in grooves in the end B and partition H, or may be held in place by metal plates, which serve as ways on which they move. One of the bottoms is provided 75 with a handle or ring, f, by which the pans are slid sidewise a sufficient distance to empty the dirt from them.

The sweeper is operated in the usual way, and combines convenience and simplicity with great economy of construction, has no parts liable to break or get outof order, and is readily taken apart for cleaning.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. The combination of tension-spring G,having friction-rollers journaled upon its ends, with a revolving brush, substantially as and for. the purpose described. 0

2. The combination, in a carpet-sweeper having adust-receptacle on each side of the brush, of the connected and sliding bottoms J J with the dust-boards I I, substantially as and for the purpose set forth. I 9 5 In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

WALTER J. DREW.

Witnesses HENRY J. FELKER, WM. M. RonrNsoN. 

